EP2584202A2 - Filtervorrichtung für die Zufuhrleitung einer Schwimmbadpumpe - Google Patents

Filtervorrichtung für die Zufuhrleitung einer Schwimmbadpumpe Download PDF

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Publication number
EP2584202A2
EP2584202A2 EP12306287.9A EP12306287A EP2584202A2 EP 2584202 A2 EP2584202 A2 EP 2584202A2 EP 12306287 A EP12306287 A EP 12306287A EP 2584202 A2 EP2584202 A2 EP 2584202A2
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EP
European Patent Office
Prior art keywords
tubular
basket
filter bag
filtration device
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12306287.9A
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English (en)
French (fr)
Other versions
EP2584202A3 (de
EP2584202B1 (de
Inventor
Marc Chiron
Mikaël Lie
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Individual
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Individual
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Publication of EP2584202A2 publication Critical patent/EP2584202A2/de
Publication of EP2584202A3 publication Critical patent/EP2584202A3/de
Application granted granted Critical
Publication of EP2584202B1 publication Critical patent/EP2584202B1/de
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1245—Recirculating pumps for swimming pool water
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1272—Skimmers integrated in the pool wall

Definitions

  • the present invention relates to the general field of swimming pool pumps, and more particularly the filtration devices intended to equip their supply duct.
  • the supply duct of a swimming pool pump is conventionally equipped with a filtering device, still commonly called a "pre-filter", so as to retain the impurities liable to deteriorate its operation.
  • This filtration device usually comprises a rigid basket of generally tubular shape with a bottom at the bottom and open at the top; the side wall, and possibly the bottom, consist of a perforated grid.
  • these filter baskets are made of injected plastic material (see for example the document U.S. 4,773,823 ).
  • the Applicant has developed a new filtration device structure for supply duct of a pool pump which is of interest, while remaining simple and economical structure, to capture more effectively the impurities ( even very fine).
  • the filtration device comprises a rigid basket which comprises a tubular envelope consisting of a grid having meshes, which tubular envelope is provided with an inner surface and an outer surface, and has a lateral opening for the entry of the water to be filtered in said basket; and this filtration device is characterized in that it comprises a filter bag which is attached in said basket, facing the inner surface of its tubular casing; this filter bag, permeable to liquids, comprises meshes whose dimensions are smaller than the mesh size of said tubular basket envelope; this filter bag is provided with a lateral opening whose dimensions correspond, at least approximately, to the dimensions of said lateral opening of the tubular basket envelope; and said filtering device also comprises fixing means, on the one hand, for securing together said basket and said filter bag and, on the other hand, for centering said lateral openings relative to each other, in order to ensuring the entry of water into said filter bag by passing through said centered lateral openings.
  • the aforementioned securing means advantageously cooperate with the periphery of the lateral opening of the filter bag and the periphery of the lateral opening of the tubular casing of the basket, so as to at least limit the passage of water between said associated perimeters .
  • the securing means advantageously consist of a fixing piece, attached inside the filter bag, which comprises an L-section connecting part comprising: a tubular section intended to be housed through the lateral opening of the filter bag and the lateral opening of the tubular basket casing, the outer surface of which matches, with the game, said lateral openings centered, and - a rear flange, connected with a border rear of said tubular section, intended to be supported on the periphery of the lateral opening of the filter bag.
  • the lateral opening of the tubular basket casing is advantageously defined by a tubular section, and the outer surface of the tubular section of the fixing piece advantageously matches, with the clearance, the inner surface of the tubular section of the tubular casing of basket.
  • the tubular section of the basket is preferably projecting on the side of its outer surface.
  • the fastener also advantageously comprises a semi-rigid holding collar which is positioned in the filter bag so as to match the latter according to an annular inner band; this holding collar and the associated connecting portion together define a perimeter equal or substantially equal to the perimeter of the inner surface of the tubular casing of the basket.
  • the retaining collar advantageously consists of two semi-rigid arms, a first of their ends is secured to the connecting portion, on either side of the latter, and whose second ends are secured together by connecting means .
  • the connecting means between the arms advantageously comprise a ring, produced in one piece with the second end of a first arm, which ring defines an opening whose section corresponds, with play, to the section of the second arm intended for be introduced through said ring.
  • the tubular casing of the basket has a generally cylindrical shape delimited by a bottom edge connected to a bottom wall and by an upper edge delimiting an upper opening;
  • the filter bag also has a shape cylindrical general, corresponding to the game close to the inner surface of said basket, with a side wall delimited - by a bottom edge connected to a bottom wall, and - by an upper edge defining an upper opening.
  • the mesh of the filter bag has a size of between 1 and 2 mm side, and the meshes of the lateral grid of the basket have a size of between 3 and 4 mm side.
  • the filtration device 1 (or "pre-filter") is intended to equip a supply duct C of a pool pump P.
  • the supply duct C comprises in particular a chamber C1 , closed by an upper lid C11 , within which is housed the filtration device 1.
  • the filtration device 1 is shown in more detail on the Figures 2 to 4 .
  • This filtration device 1 here comprises an assembly of three separate parts, namely: - a rigid outer basket 2, - a filter bag 3, which is housed in this rigid basket 2, and - a fastener 4, to secure together said rigid basket 2 and said filter bag 3.
  • the rigid basket 2 is shown in more detail on the figures 3 and 5 .
  • This rigid basket 2 consists of a one-piece piece, obtained by injection molding of a plastic material of polypropylene type.
  • This rigid basket 2 of generally cylindrical shape, comprises a tubular envelope 5 (or tubular wall) delimited by a lower edge 6, connected to a bottom wall 7 ( figure 3 ), and - by an upper edge 8, connected to a collar 9 projecting outwards and delimiting an upper opening 10.
  • the tubular casing 5 is here of circular section, with a constant diameter over its entire height.
  • This tubular envelope 5 consists of a grid, having meshes 51, here of rectangular shape, the size of which is for example 3.5 mm by 3 mm side.
  • the bottom wall 7 consists of a disk-shaped element, either solid or grid-shaped having rectangular meshes 71 whose size is for example also 3.5 mm by 3 mm.
  • the tubular envelope 5 and the bottom wall 7 together define an inner surface 11 and an outer surface 12, formed by their inner surfaces 5a, 7a respectively and with their outer surfaces 5 b, 7 b respectively ( figure 3 ).
  • the tubular envelope 5 On the side of its upper edge 8, the tubular envelope 5 further comprises a lateral opening 13 for the entry of the water to be filtered into the basket 2.
  • the lateral opening 13 is here of generally oblong or oval shape, the major axis of which extends in a plane L perpendicular to the longitudinal axis 5 'of the tubular envelope 5 ( figure 3 ).
  • this lateral opening 13 may have any other desired shape, in particular circular.
  • This lateral opening 13 of the basket 2 is defined by a one-piece tubular section 14 projecting on the side of the outer surface 12.
  • the inner surface 14a of the tubular section 14 matches the contour of the side opening 13, and has also here an oblong section (or oval).
  • the filter bag 3 is in turn represented in more detail on the figures 3 and 6 .
  • This filter bag 3 is for example made of a flexible material, preferably a flexible thermoplastic polymer material, preferably textilene (polyester blend, whose fibers are covered with polyvinyl chloride).
  • This filter bag 3 is permeable to liquids, and for this it comprises meshes 19 whose dimensions are smaller than the dimensions of the meshes constituting the basket 2 ( figure 3 ).
  • the meshes 19 of the filter bag 3 thus advantageously have a rectangular shape, for example with a size of 1.3 mm by 1.1 mm.
  • the meshes 19 have an area less than 2 mm 2 , more preferably less than 1.6 mm 2 , more preferably between 1 and 1.6 mm 2 .
  • the meshes 19 may still have a circular or other general shape, with dimensions as specified above.
  • This filter bag 3 is also of generally cylindrical shape, with a tubular side wall 20 delimited - by a bottom edge 21, connected to a bottom wall 22, and - by an upper edge 23 delimiting a circular upper opening 24.
  • the lateral tubular wall 20 and bottom wall 22 together define an inner surface 3a and an outer surface 3b, formed by their inner surfaces 20, 22a respectively and with their outer surfaces 20 b, 22 b respectively ( figure 3 ).
  • the filter bag 3 has identical or similar dimensions to the inner surface 11 of the rigid basket 2, so that this filter bag 3 matches the rigid basket 2 when it is attached to the latter ( figures 2 and 3 ).
  • the diameter of the tubular side wall 20 and bottom wall 22 of the bag filter 3 corresponds to the clearance, to the diameter of the inner surface 5a of the tubular housing 5 and the bottom 7
  • the height of the side tubular wall 20 of the filter bag 3 corresponds approximately to the height of the tubular casing 5 of the rigid basket 2, or is a little less than this height.
  • the lateral tubular wall 20 of this filter bag 3 is further provided with a lateral opening 25 whose shape and dimensions correspond, at least approximately, to the shape and dimensions of the lateral opening 13 of the tubular envelope 5 of the basket 2.
  • This filter bag 3 is advantageously obtained by assembling two pieces, one forming the bottom wall 22 and the other forming the lateral tubular wall 20; the latter is advantageously obtained by bending or bending a rectangular piece whose lateral end edges are associated with each other.
  • the various fastenings are advantageously obtained by heat sealing or sewing.
  • the fastener 4 is in turn represented in more detail on the figures 3 , 7 and 8 .
  • This fastener 4 is intended to be attached inside the filter bag 3 housed in the rigid basket 2, to form fastening means capable, on the one hand, to secure together the rigid basket 2 and the filter bag 3 and, secondly, to center the lateral opening 13 of the rigid basket 2 and the lateral opening 25 of the filter bag 3 relative to each other.
  • the fastener 4 consists of a one-piece piece, made by injection molding of a plastic material.
  • This fixing piece 4 made consists - of a connecting portion 30 for the positioning and centering of the lateral openings 13, 25 mentioned above, and - of a retaining portion 31, in the form of a collar, for locking in position of the fastener 4.
  • the rear flange 33 extends in a plane perpendicular to the axis of the tubular section 32.
  • the tubular portion 32 is defined - by two annular surfaces, one internal 32 a and external 32 b another, and - two lateral edges, one before 32 c and the other rear 32 d.
  • the inner annular surfaces 32 and external 32 b extend parallel relative to each other.
  • the inner surface 32 is intended to delimit a passage for the water to pre-filter, as discussed further below in connection with Figures 2 to 4 .
  • the outer surface 32 b of the tubular section 32 is adapted so that its shape and dimensions correspond to the clearance, the dimensions of the lateral openings 13 and 25 centered, and the inner surface 14a of the tubular section 14 of the basket 2.
  • the rear flange 33 is delimited by two surfaces, one front 33 a (the side facing the tubular portion 32) and the other rear 33b, and by two lateral edges, one inner and the other 33 c outside 33 d .
  • the rear edge 32 d of the tubular section 32 is connected to the inner edge 33c of the rear flange 33.
  • the holding portion 31 is in the form of a semi-rigid collar which consists of two flexible rectilinear arms 35 and 36 semi-rigid, able to be deformed by bending so as to apply a reversible curvature.
  • This first end 35 a and 36a of the arms 35 and 36 is connected at the side areas through which passes the major axis 30 'of the connecting portion 30 (or the major axis 32' of the tubular section 32); and the arms 35 and 36 extend in an aligned manner, in the extension of this major axis.
  • the connecting means between the second ends 35 b, 36 b of the arms 35, 36 comprise a ring 35 c integrally formed with the second end 35 b of the first arm 35.
  • This ring 35c defines a through opening 35 d , whose axis extends parallel to the first arm 35 and whose section corresponds, with play, to the section of the second arm 36.
  • the two arms 35 and 36 are intended to be bent in an arc of the side of the rear surface 33b of the rear flange 33 of the connecting portion 30.
  • the second end 36 b of the second arm 36 is inserted through the opening 35 of the ring 35 c provided on the first arm 35 so as to define together the rigid circular collar 31.
  • the second arm 36 can advantageously slide freely through this ring 35 c or present a frictional force (low or high).
  • the filter bag 3 is first suitably reported within its rigid basket 2 dedicated. Where appropriate, the positioning is simplified by the flexibility of this filter bag 3.
  • the filter bag 3 is positioned with its upper opening 24 extending in the plane, or at least approximately in the plane, of the upper opening 10 of the rigid basket 2.
  • the outer surface 3b of the filter bag 3 then covers inner surface 11 of the basket 2, with firstly their tubular walls 20, 5 opposite and secondly their bottom walls 22, 7 superimposed.
  • This filter bag 3 is further oriented so that its lateral opening 25 extends opposite the lateral opening 13 of the rigid basket 2.
  • the operator can then report the attachment piece 4 as shown on the Figures 2 to 4 .
  • the two semi-rigid arms 35 and 36 of the fastening piece 4 are properly secured together so as to form the circular semi-rigid collar 31 as described above in relation to the figure 8 .
  • This connection is adjusted so that the diameter defined by the semi-rigid collar 31 obtained is a little smaller than the diameter of the inner surface 11 of the rigid basket 2 in which it is attached (or more precisely a little smaller than the diameter of the surface 20 a of the lateral tubular wall 20 of the filter bag 3 in a horizontal plane passing through its lateral opening 25).
  • the operator then positions the connecting portion 30 of the fastener 4 by the inside of the filter bag 3, so as to cooperate with the lateral openings 13 and 25 associated and the tubular section 14 of the basket 2.
  • the fastener 4 is introduced into the filter bag 3, then the tubular section 32 of its connecting portion 30 is housed through the lateral openings 13 and 25 centered and also the tubular section 14 of the basket 2 by a translation introduction from inside to outside.
  • the front surface 33a of the rear flange 33 of the connecting portion 30 comes to bear on the periphery 25 to the lateral opening 25 of the filter bag 3 ( Figures 3 and 4 ).
  • This periphery 25 to the lateral opening 25 of the filter bag 3 is thus sandwiched between - the rear flange 33 and - the edge 13a of the side opening 13 of the rigid basket 2 (or more precisely the part of the inner surface 5a of the tubular casing 5 of the rigid basket 2 surrounding the lateral opening 13 and which lies opposite the rear flange 33).
  • the holding collar 31 is positioned within the filter bag 3 so as to fit the latter according to an annular inner band extending in a plane L which is perpendicular to the longitudinal axis 1 'of the filtration device 1 and which passes through the lateral opening 13 of the rigid basket 2 ( figure 3 ).
  • This collar 31 tends to increase in diameter because of the elasticity of the arms 35, 36 (or is adjusted in diameter manually, as a function of the friction at its ring 35 c ) until its diameter corresponds to the diameter of the inner surface 20a of the tubular side wall 20 of the filter bag 3 rests against the tubular casing 5 of the rigid basket 2, and thus tends to maintain the connecting portion 30 associated in position.
  • the holding collar 31, and the associated connecting portion 30, together define a perimeter (in this case a circumference) equal to, or substantially equal to, the perimeter (in this case also a circumference) of the surface inside 5 a of the tubular envelope 5 of the rigid basket 2 and more precisely at the perimeter of the inner surface 20 a of the lateral tubular wall 20 of the filter bag 3.
  • the filter bag 3 and the connecting piece 4 are joined together, the rear flange 33 is secured to the periphery 25 a of the side opening 25 of the filter bag 3 (for example by heat), its tubular section 32 passes through the lateral opening 25 of this pocket 3, and its arms 35 and 36 extend facing the tubular wall 20.
  • the assembled filtration device 1 can then be attached to the supply pipe C of the swimming pool pump P with the tubular section 14 of the rigid basket 2 connected to the upstream section C2 .
  • the water to be filtered then travels through the filter bag 3 which retains the impurities (depending on the size of the mesh), then through the rigid basket 2.
  • the filtered water can then flow in the downstream section C3 of the supply line C to the pump P.
  • the filter bag 3 has to be changed (for example if it is clogged, deteriorated or to be cleaned, it suffices for the operator to exert a pull on the retaining collar 31 of the fastener 4 so as to extract its part connecting 30 relative to the orifices 13 and 25 associated.
  • the filter bag 3 can then be extracted through the upper orifice 10 of the basket 2 for replacement or cleaning.
  • the filtration device 1 thus has the advantage of allowing a particularly efficient filtration, while being of particularly simple and inexpensive structure, its various component parts being able to be obtained by technologies and very economical materials.
  • it is particularly simple in terms of maintenance and maintenance, which makes it possible to maintain optimum filtration qualities over time, as well as protection of the hydraulic assembly of the pump.
  • the current rigid baskets may be equipped with a filter bag 3 associated with fastening means 4, to obtain a filtration device according to the invention.
  • the filter bag 3 and possibly the fastening means 4 can then be accessories that can be sold independently of a rigid basket, to equip a basket without a filter bag or to replace a used filter bag.
  • the rigid basket 2, the filter bag 3 and the fastener 4 can still be marketed in the form of a "kit” or a ready-to-assemble.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtration Of Liquid (AREA)
  • Filtering Materials (AREA)
  • Farming Of Fish And Shellfish (AREA)
EP12306287.9A 2011-10-17 2012-10-17 Filtervorrichtung für die Zufuhrleitung einer Schwimmbadpumpe Active EP2584202B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1159373A FR2981413B1 (fr) 2011-10-17 2011-10-17 Dispositif de filtration pour conduit d'alimentation d'une pompe de piscine

Publications (3)

Publication Number Publication Date
EP2584202A2 true EP2584202A2 (de) 2013-04-24
EP2584202A3 EP2584202A3 (de) 2018-01-03
EP2584202B1 EP2584202B1 (de) 2019-03-06

Family

ID=47071204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12306287.9A Active EP2584202B1 (de) 2011-10-17 2012-10-17 Filtervorrichtung für die Zufuhrleitung einer Schwimmbadpumpe

Country Status (4)

Country Link
EP (1) EP2584202B1 (de)
ES (1) ES2719629T3 (de)
FR (1) FR2981413B1 (de)
PT (1) PT2584202T (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773823A (en) 1984-11-13 1988-09-27 Tolo, Inc. Centrifugal pump having improvements in seal life

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4701259A (en) * 1986-03-27 1987-10-20 Rosedale Products, Inc. Fluid filter with filter retainer
US6878266B2 (en) * 2001-11-21 2005-04-12 A. H. Equipment Corporation Spa and pool filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4773823A (en) 1984-11-13 1988-09-27 Tolo, Inc. Centrifugal pump having improvements in seal life

Also Published As

Publication number Publication date
ES2719629T3 (es) 2019-07-11
FR2981413B1 (fr) 2013-11-15
FR2981413A1 (fr) 2013-04-19
EP2584202A3 (de) 2018-01-03
PT2584202T (pt) 2019-04-12
EP2584202B1 (de) 2019-03-06

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